Manufacture of block polyester polyols and polyurethanes...

Details Manufacture of block polyester polyols and polyurethanes... Manufacture of block polyester polyols and polyurethanes...

C - Chemistry, Metallurgy

08

G

402/150, 400/201

C08G 63/20 (2006.01) C08G 18/42 (2006.01) C08G 18/46 (2006.01) C08G 63/685 (2006.01)

Patent

CA 1330137

ABSTRACT OF THE DISCLOSURE A method for the manufacture of polyester polyols is disclosed. The method comprises feeding to a reactor at least one aliphatic carboxylic acid or ester thereof, at least one secondary dihydric alcohol and at least one primary trihydric alcohol, heating the resultant admixture and removing water. When at least 95% of the water has been removed, N-phenyl dialkanolamine and additional primary trihydric alcohol are added and heating is continued. The reactants are selected so that the range of molecular weights thereof is not more than 100. A block polyester polyol is obtained. Polyurethanes obtained from the polyester polyol tend to have more uniform and superior properties. The polyurethanes may be used in a variety of end uses.

578872

Affiliated with

Also associated with

Rating

Manufacture of block polyester polyols and polyurethanes... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacture of block polyester polyols and polyurethanes..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacture of block polyester polyols and polyurethanes... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1248625